Drier tank



1. 1. GAGE.

DRIER TANK.

FILED DEC. 13| 1920.

' INVENToR.

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l'. l l? ATToEY.

3o pressure.

Patented Mar. e, 1923. 1,447,205l

UNITED STATES PATENT] i :rosErH .'I. enen, on DAYTON, einen'ssrer1\ion,, Biffk ilrnsnnnsfsreniirnn'rs, orb-Nnmnf 1' T0 THOMSURETON.OEDAYTEOmOHm;

einem- Appneationleii Decemter'is,192oifserial-N0.431,6so.-

To 'all 'whom 'it may concern." l steam directly :into-the massof material,v i,

Be it known that I, JOSEPH J.'GAGE, a until it isthoroughlycooked,l and all grease, citizen of the `UnitedStates*residing at fat ancloilare liberated.v The grease'and :y Dayton, in the countyk of Montgomery andv oil,- whichl rises to: thej topf-of thel cooking t 5 State of Ohio, have invented certain 'new mass are ldrained `oii'thruoutlet conduits, 60-v `and useful Improvements in Drier Tanks, and after the/mass has been s'uiiciently y, of'which the following is a'specicatio'n. l cooked, steam is admittedL-,to the interme- My invention relates to cooker tanks for dia-te space betweenthe 'walls/of thek vessel butchers and packers',v and morefparticularly orboiler, thereby subiecting thecooked mass y to reinforcement means; for the innerfshell of materialto a drying heat. l The mass-is, 6.5

of steam jacketedftanks, usediforlcookingfcontinuously agitated during 4the, dryingl .f and drying refuse, "oials',v and waste material processby a rotary agitatorwithin thein4 for fertilizerpurposes, but alsocapable of" ner vesselor Compartment'. iHeretoore oon'- use as a rendering tank. 1 Y i siderable difficulty has been I experienced The object yof the invention yis to-simplify* thru the tendency of the inner vessel orcoin:y 70 the structureas well as the means and mode partment toncollapse under external pressure of operationvof such tanks, `whereby they'- ofthe v steaml withinthe steam jjacketor will not only Abe YcheapenedY in construction, Space bet-Ween theWalls of the inner 4and.` but will 'be more eiicientin; use, having outer compartment- 'It has .been customary greater g iuiabili ty,qv tofv increased strength, t0 p rovidestay bolts orties., which connect: 75 and v'subjected to minimum stresses andv theinner-and outer compartments or shells strains, incident to expansion ySand contracat `intervals. However, the-'inner shellbe-j.- tion. "f f `ing subject to much greater heatl andr not.l

'A further object ,of the'invention is to* subjected to"the :cooling influence of the sury j provide a. reinforcedinner shell or compart rOUlldlI'lg iltmos'phelef eXPLldS; and (,ltl'ltso ment, Awhich will be Ji're'eI to* expand withv tosa greater degreefthan the exteriorshell, vvariatimi's`.lof temperature independent or'I thereby setting up stresses, and strains, theouter shell," yet amplyfreinforcedto re-l Whichtend t0 10091611 the StLVlOO'lS OItS,f-` sist v collapsing tendencies under` external- 91161167057KJ CauSlIlg leakage MOTQOVQIyLthGSe-f" f I 4; v j 1 v strains ,andstresses tend to warp the walls`85 A fu' her object "of my'j invention is tofs@ yofthe,@01H10ertmerlts or Shells 11n-uniformly," construct and larrange the parts of such? materially shortening the life and durability cooker tankas to obviate thenecessity'of DffSuChCOOkel'S- f stayV bolts, j spacers'f'or other' reinforcing 'lhe 4mass-or ,material comprisingoilals, y means connecting'the inner and outer'shells refuse and waste materlalqt'o lie-:treated S- 90 of the cookerltanks to prevent the L4'collapse' 0f 1I10 1e or less acld nature andV upon the ofthe inner compartme'nt.Vv ff `100Sen1ng.'ofthestay boltSiili the ordinary With the above "primary andother inlconstruction, this acid attacks themateri'al cdental objects in view as will more `fully 0f thestavbqlts and theinterengagngscrew 4Q appear in. -the specification, thein'ventic'anl thI dS, Cl1SlIlg I'USlland cOlTOSOIl and mak9!) consistsof theieatures'i of construction, "the teriallv increasing the loosenessgandleakage, partsv and Combinations thereof; 'angl-115.@k initiated by the-ununi-form warpingk and the mode of operation-'or 'their' equivalents i as Strains yof the vessel due to expansionk and hereinaterdescribed andset forthinethe ,COIISDI'UCIOIIL Y e l f: claims. f Referring-to the. drawing, lf--isa cylin- 100y In the accompanying drawing,4 which, dICal Shell -01' boiler having 4at the vupper comprises a verticalsect'lonal view'ofan asl-- endamanhole 0I* @C0855 Opening" 2- ithl I' sembled cookertank;embodying"the'present in thls. main outer shell 1,fiS Suspended, an invention, there is 'illstrated'thepreferred, ln'ner shell or cookingvessel' 3. Suohinner i butnot necessarilytheonly embodimentof shell-3 is'offlessldiameterthanfthe mainnshelll t the invention. f 1', and' is positioned 'concentrically-therein In 'the reduction "ofrefuseandoals,'for in Spacedf'relation with thewalls voi? the fertilizer'purposes,'itf`is quitefthe practice main `shell 1 tojatford intermediate, the .in-75 to4 Y360k such rialtei'iahin'` a steam jacketed 11er ashell3l and, outer shell l, avsurrounding or, double boiler, byirst introducing thefliv'e ste'am5space ggxjlhe innerfcookingfshell 11,0 f

sealing the space fabout lsuch is attachedfto the yWalls ofithezshell l-at a substantially mid height point by being,r `outwardlyflanged or expanded, as atand securedby riveting, Weldiikigior o tliersuitable means. The connection is at such height that the inner or cooking shell is suspended Within the main shell in spaced relation not only with the side walls, but also fwithin the bottom of such main shell, as indicated at 6; 't the lower aportion of the inner croco-king shell13ithereis':provided a man hole ormed .in acollarror spacerfS ,linten posed'fbetween the i innerand outerfshellsand iman hole.v CentrallyT disposedy in tthe bottom .of the cooker lis" a 'head `9,`lia-vingrtherein :a packing gland 1U, lthru which vexteiitlsfajrevoluble Shaft E11 of an ,agitator rotatable Within T his .agitato-r comprises radially disposed arms 212 fpre'terablym'iliaving upturned :extensions 213. Aside 'from #the connection *of Ithe 'man fho'le collar +8 and the bearing head 9 `for the y"agitator shaft, the 'inner shell v3 islentirely :independent ol the youter ishell l1, below its mpper .marginal attachment flange )lo intermediate rties are interposed lbe'tween lthe wvalls of the in ner and outer shell. In lieu Vthereoi` 'fthe inner=s`hell -is peripherally :corrugated as at 14 'to 'reinforce ythe Lshell and ienable lit to 7resist extern-al pressure of the steam Within the interveningl spacel between the'lshell and `maineshell 11. Ht the same i time. Lthe inner Kshell 'fleeing independent yof the Imain shell or devoid :o'fltie bolts Lor :in-

tervening spacers, it is permitted yito expand:

andcontraet without subjecting .either of the shells to undue astrains .incident `to :the tying or connections o the fre'spect'ive shell-s by '-,tie vbolts' as vi-s thel vusuali construction. Moreover, the peripheral corrugations 'line crease somewhat the Wall surfaeebr heating surface V=to V'which the 1contents of the vessel are subjected during-*the drying foperatioin. Thusfby this y'construction involving the l.peripheral cori-ug ations of `=the :inner vessel, athe' drying period ismaterially reduced :and the life of 'the `cooker gtank l'greatlyzlengthened. This form oit reinforcement reduces `#to 'a minimum, L,openings t'or @revises in the in ner -Waillsof the vessel such as rivetiholes; studs or stay'bolts dasteninfgs, -which :afford access openings for the acids contained inV the material operated aip'on. Fnrthenmore, the corrugated construction tends to equalize `or compensate ttor expansion .and .con traction Iand 'minimi/aesgthestrains 'inoi- `dent thereto.

The manhole f2 fat the-:top ol ithe cooker is provided with a `closiuzefleid kltfftailiie secured in vposition bybolts L17. y In #order to 'lift the -closure "hea-d '16 into :and fout .o

. V-registry :Withfthe man holegthere is pnovided a 'shaped standard revelubly :manutan a socket 19. TheY closure head 16 is sus pended from aV liftingleverQOlpivoted to one of the arms of the Y-shaped standard 18. lThe lifting lever is engageablc vvitlrthe othei'a'im of such -Y-shapedstandard to "maintain lthe closure head 16 in elevated position.

"The man hole 7 at the bottom ot' the cooker Lis likewise :provided with a removable closure head 22. `This closure head is carried upon the tend of va dependent karm 23 mounted upon la slide :Qilhaving :reciproca-tony movement upon .swinging bracket arm 25, .hinged to the shell l. lThis closurepivoted to the lower end of the dependent supporting .arm ,23.y

A Ysteaminlet 28 the bottom of :the .inner shell `tlnrutvhich steam yis admitted .during thegcoolgng` process, Likewise :outlets .29 .are lprovided y at different levels thru which vmay be drawn off the grease and oil released from the mass of material .during the cooking operation. In xthe topof the shell :1fis ,provided an exhaust conduit 3Q, connectedftoa suitable suction :apparatugzby which ,the vapors yare eX- haustedV from the shell operation7 .which isneli'ected bythe circula: tion of steam intermediate the innervand outer shells, after the cooking operation has beenl completed. l

From-thefabove description it will be apparentthat there is sthus :provided a device of L.the character described ,possessing the particular featuresot .advantage before enumerated as desirableVbut Which obviously is 'susceptible of modication yin its form, proportions, detail-*constructionand arrangement .of parts Wit-hout departing from the principle involved .or sacrificing any of 'its advantages. i ,a y f While in order to comply @with the statute the invention has been described in language more or less specific as to structural features, it .lis ato be vunderstood thatthe .invention is not limited -t'o the speciiic detailsshown, l.but that l the 'means and constnuctiop hereinl `:disclosedcomprise lbut oneof ,several modes .of putting :the invention into eEect and the invention is therefore claimed in ,of .its forms or modifications Within the `legitimate and lvalid .scope of the :appended claims.l

Ha-'ving thus described .-invention,y l .clazilmz' 1. 1n a steam pressure cooker and drier .is :provided adjacent to during they drying for -offal refuse andthe like, 'aftank,- thel lower portion of which is double walled, the inner wall being spaced from the outer wall to form an intermediate steam 'space ,said

double walled portion terminating at a mid height point of the tank,"'the inner Wallof the tank being peripherally corrugated to Stiffen said innerlwall against external presjected to highest temperature within the during vthe treating process.

2. ln a steam cooker .and l refuse andthe like, means for progressively double walled portion ofthe tank is agitated the lower'portion thereof to highertemperature and agitation comprising a tank, a perpherally corrugated innershell located in,l`

the lower portion ofthe tank in spaced .relation with the wall of the tank `to form in termediate the corrugated inner shell and the wall of the tank'an annular` steam space to which steam is admitted for heating the lower portion of the `mass to higherl degree than that in the higher zones, thereby pro'- gressively cooking and drying the mass, ythe 1 interior of saidv inner shell being subject to internal s team pressure independent of said" intermediate steam space, an agitator 'subject-fv 1 drier. for oflal the most highly heated portion of the 'i vlilass to agitation'-during the treating process, lthe corrugations .of the inner-shell being adapted to increase the area of the'heated surface inthelower portion of the ktank, and

to enable the shellitowithstand `predominating external or internal pressures independ-i` ent ofstay'bolt connectionsjwiththe main tankwall.

3.2111 al steam character described, atank" the lower por- `tion of which iis; double walled,the inner and router walls being spaced 03116 yfrom the otherl 'cooker Land drier of the l toform anintermediatesteam space termivnating at a mid height: point of the mass of material tobetreated, whereby the .upperV and lower portionsof themass will bev subtreating the mass of material by" subject1ng-= jected to different temperatures to effect a crease thel area ofthe heated surface in the lower'portion of vthe tank, and'to enable said Y inner wall to withstandl external pressure without g necessitating stay bolt connections with the outer wall.'

In' testimony whereof, I have hereunto set myl hand this 13th day of December, A. D. i920. i, i y

JOSEPH J; GAGE. y

yllitne'sses; y t

WILLIAMA. SWANEY, GnoRGn C;"HELMIG. 

